former cia director david petraeus will testify about the attack on the u.s. consulate in benghazi. >> president obama continues to come to the defense of one of the key players under scrutiny during a news conference at the white house. melanie alnwick is live with the latest on this > reporter: the controversies over this matter just keep piling on. the most recent regarding the resignation of ex-cia director general david petraeus and as you said, we did learn he will testify friday morning in a closed door hearing before the house intelligence committee. petraeus we know had visit libya on his own, conducted his own investigation into what happened there. his testimony will be before the house intelligence committee about those matters, about what he discovered but not about his affair. today, members of congress will press high-ranking intelligence officials about what really happened in benghazi. president obama addressed a multiflying controversies in his first post-election press conference first saying he saw no evidence that national security was har